$\"\"$

\

The equation is $\"\"$ .

\

Multiply each side by $\"\"$ , and reciprocal of $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Subtract 7 from each side.

\

$\"\"$

\

$\"\"$

\

Multiply each side by negative one.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Check:

\

To check the solution, substitute $\"\"$ in original equation.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The value of $\"\"$ .